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Editing: ObjectType.php

<?php

namespace Doctrine\DBAL\Types;

use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\Deprecations\Deprecation;

use function is_resource;
use function restore_error_handler;
use function serialize;
use function set_error_handler;
use function stream_get_contents;
use function unserialize;

/**
 * Type that maps a PHP object to a clob SQL type.
 *
 * @deprecated Use {@link JsonType} instead.
 */
class ObjectType extends Type
{
    /**
     * {@inheritdoc}
     */
    public function getSQLDeclaration(array $column, AbstractPlatform $platform)
    {
        return $platform->getClobTypeDeclarationSQL($column);
    }

/**
     * {@inheritdoc}
     *
     * @param mixed $value
     *
     * @return string
     */
    public function convertToDatabaseValue($value, AbstractPlatform $platform)
    {
        return serialize($value);
    }

/**
     * {@inheritdoc}
     */
    public function convertToPHPValue($value, AbstractPlatform $platform)
    {
        if ($value === null) {
            return null;
        }

$value = is_resource($value) ? stream_get_contents($value) : $value;

set_error_handler(function (int $code, string $message): bool {
            throw ConversionException::conversionFailedUnserialization($this->getName(), $message);
        });

try {
            return unserialize($value);
        } finally {
            restore_error_handler();
        }
    }

/**
     * {@inheritdoc}
     */
    public function getName()
    {
        return Types::OBJECT;
    }

/**
     * {@inheritdoc}
     *
     * @deprecated
     */
    public function requiresSQLCommentHint(AbstractPlatform $platform)
    {
        Deprecation::triggerIfCalledFromOutside(
            'doctrine/dbal',
            'https://github.com/doctrine/dbal/pull/5509',
            '%s is deprecated.',
            __METHOD__,
        );

return true;
    }
}

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